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Anaerobic Fermentation of Silage from the Above-Ground Biomass of Jerusalem Artichoke (Helianthus tuberosus L.) and Maize (Zea mayse L.) As a New and Promising Input Raw Material for Biogas Production

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KINTL Antonín VÍTĚZ Tomáš HUŇADY Igor BRTNICKÝ Martin NOVÁK David LOCHMAN Jan VÍTĚZOVÁ Monika HAMMERSCHMIEDT Tereza HOLÁTKO Jiří ELBL Jakub

Rok publikování 2022
Druh Článek v odborném periodiku
Časopis / Zdroj Applied Sciences
Fakulta / Pracoviště MU

Přírodovědecká fakulta

Citace
www https://www.mdpi.com/2076-3417/12/22/11417
Doi http://dx.doi.org/10.3390/app122211417
Klíčová slova Jerusalem artichoke; Helianthus tuberosus L.; silage; methane; biogas plant; anaerobic co-digestion
Popis Research of new input raw materials for biogas plants is a very actual topic. There are only a very few studies dealing with the possibility of using silage prepared from the above-ground parts of the Jerusalem artichoke (Helianthus tuberosus L.) and maize (Zea mayse L.) for methane production. This study deals with the determination of methane production and methane content in biogas during the fermentation of maize silage with dissimilar additions of the biomass of the Jerusalem artichoke (JA). Except for the effect of the JA’s addition on the yield of methane, we also studied its potential influence on the inhibition of the process of anaerobic digestion and the bacterial and methanogenic archaeal composition of anaerobic digestate. There were five model silages prepared; two of them contained only maize or JAs, and the remaining three were mixtures of maize and JA silages (30%wt; 50%wt and 70%wt). The fermentation tests showed that the JA addition (from 30 to 70%wt) resulted in the production of biogas decreasing, on average, by 15%. Based on the performed metagenomic analysis, we cannot confirm an essential influence of JA biomass addition on the composition of the community of microorganisms during fermentation.

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